In the United States, health care costs have been rising rapidly for several years, while at the same time citizens have faced greater obstacles to gaining access to care

__________ validity is confidence in saying that the independent variable caused the change in the dependent variable

a. External b. Internal c. Construct d. Face

An end to the Westphalian state system, in the view of some constructivists, might lead to a new system of __________

a. cyberfeudalism b. confederations of states c. rule by a supranational government power d. geographical units governed through Internet communities